YubiKey FIDO

U2F Security Key for Two-Factor Authentication

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What is U2F Security Key?

The FIDO U2F Security Key is a convenient and affordable two-factor authentication solution. It is a specially designed YubiKey for protecting accounts in popular websites and online services, such as Facebook, Gmail, Google Cloud and G Suite, GitHub, Dropbox, Dashlane and many others that support the FIDO U2F protocol. Personal IT security has never been that easy. Just insert the U2F Security Key into any available USB-A port and touch the button — that is all that takes to make the login secure.


Two-factor authentication (2FA) adds an extra layer of security to your account that you, and only you, can access in order to prove your identity.

Millions of people use YubiKeys because they’re the easiest to use, super secure, and affordable. Plug in your YubiKey and tap it to log in to your computers, networks, and online services. Keep one on your keychain with the key to your house/car, and a second YubiKey in a safe place as a backup.



Prevents unauthorized access by requiring the physical presence of the key to log in on that device

Easy to use

Plug it in and touch the gold button or edge; no codes to type or apps to install


The same YubiKey can be used with nearly unlimited services


Crushproof and water-resistant, no batteries or moving parts


Use it on Microsoft Windows, Mac OS X, Linux, and Chrome OS for Chromebooks


Fits nicely on a keychain, in a wallet, or inside a USB port

Easily integrable with the most popular services

Use it with popular services like Facebook, Gmail, GitHub, Dropbox, Dashlane, LastPass, Salesforce, Duo, Docker, Centrify, and hundreds more. Configurable for computer login (Windows, Mac, Linux). Follow the instructions that each service provides to register your YubiKey.

Easy-to-use protection with powerful and secure technology

Each Security Key has an individualized secure chip which performs cryptographic functions triggered by a simple touch of the key. You never see the details, but behind the scenes FIDO U2F Security Key provides a unique public and private key pair for each application it protects. Only those keys can correctly complete the cryptographic challenge required for login.

The secure chip is of the same class as those used in SIM Cards, electronic passports, military electronic IDs and chip-and-pin credit cards. Like those devices, the chip is specially “hardened” so it’s extremely difficult to steal the secrets hidden inside. The secrets contained in the Security Key belong to the end-user exclusively and are never transferred, copied or stored by a service provider or any other application provider.

This is not a biometric device, instead it uses a capacitive sensor activated by the small bit of electricity the human body naturally produces.

Technical Specs
FIDO U2F Security Key
Size 18mm x 45mm x 3.3mm, 3g
Functions FIDO U2F Security Key
Secure Static Passwords
Yubico OTP
OATH – TOTP (Time)
OATH – HOTP (Event)
PIV-Compliant Smart Card
FIDO U2F (Universal Second Factor)
Secure Element
Top Applications FIDO U2F Security Key
Google Accounts (U2F)
Facebook Accounts
GitHub (U2F)
Dropbox (U2F)
Dashlane Premium
Many more applications
Certifications FIDO U2F Security Key
FIDO Certification™ program
FIPS 140 Certification
Communications Support FIDO U2F Security Key
NFC (Near Field Communication)
Device Type FIDO U2F Security Key
HID Keyboard
CCID Smart Card
FIDO U2F (Universal 2nd Factor) HID device
Cryptographic Specifications FIDO U2F Security Key
RSA 2048
RSA 4096
ECC p256
ECC p384

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